Raw materials are delivered with vendor certification demonstrating their compliance with Zhongfu Lianzhong quality requirements. In addition, all raw materials are sample tested prior to their use. These tests ensure that the pipe materials comply with the specifications as stated

Physical Properties

The manufactured pipe’s hoop and axial load capacities are verified on a routine basis. In addition, pipe construction and composition are confirmed.

3. Top coat (0.2 – 0.3mm) . In tables bellow thickness include 0.2mm of top coat

Unloading，Handling，Transportation and Storage of GRP pipe sea water pipe series

Unloading and Handling Pipes

Unloading the pipe is the responsibility of the customer. Be sure to maintain control of the pipe during unloading. Guide ropes attached to pipes or packages will enable easy manual control when lifting and handling. Do not drop, impact, or bump the pipe, particularly at pipe ends.

If at any time during handling or installation of the pipe, any damage such as a gouge, crack or facture occurs, the pipe should be repaired before the section is installed.

Transporting Pipes

Strap pipe to the vehicle over the support points using pliable straps or rope. Never use steel cables or chains without adequate padding to protect the pipe from abrasion. Bulges, flat areas or other abrupt changes of curvature are not permitted. Transport of pipes outside of these limitations may result in damage to the pipes.

Site Pipe Storage

It is generally advantageous to store pipe on flat timber to facilitate placement and removal of lifting slings

around the pipe.

When storing pipe directly on the ground, be sure that the area is relatively flat and free of rocks and other

potentially damaging debris. Placing the pipe on mounds of backfill material has been found to be an effective

way of site storing the pipe. All pipes should be chocked to prevent rolling in high winds.

FAQ of GRP pipe sea water pipe series

Q1: What’s the performance standards?

Lianzhong pipe is designed to meet all of these ASTM , AWWA, BS, DIN standards.

Advantages of HDPE tubes:1. It is easy to form the closed anti-seepage system by butt welding and electrofusion welding. When laying along the trench, the excavation of the trench can be reduced and the amount of the fittings can be reduced.2 、 light weight and easy to install;3 、 strong abrasion resistance and excellent hydraulic performance, the buried pipeline can be protected without outer layer. The utility model can be applied to the earthquake and the soil subsidence area of the mining area, and can be laid on the bottom of the river by immersion method.4 、 chemical resistance, resistance to internal, external and microbiological corrosion, corrosion resistance, and health. The utility model is suitable for conveying acid and alkaline substances, conveying sewage, natural gas, gas and other substances;5, good environmental adaptability and frost resistance. It can be used in indoor and outdoor water supply pipelines.6, long service life, with more than almost 50 years of service life;7, easy to recycle

Q:What are the standards for FRP pipes?

As the glass tube between the use of double "O" type sealing ring way to connect, so each installation of a pipe, at the socket to suppress, in order to detect double "O" type sealing ring sealing effect.

Q:The difference between GRP cable duct and PVC cable pipe

The biggest difference is that the material is different, and the other areas of use are different

Q:What are FRP pipes made of?

Light weightThe weight of the pipe is only 1/4 of the same size and the same length as the ductile iron pipe, and 1/10 of the cement pipe. The transportation is easy to handle and easy to install.

Q:Why FRP pipe corrosion?

If it is ordinary water, generally does not count corrosion, there will be no obvious corrosion, long time began to soak rotten.